# Fibonacci Day 2022: Date, History, Significance, Celebration & More

Fibonacci Day 2022: It is observed on November 23 annually to honor one of the most influential mathematicians of the Middle Ages namely Leonardo Bonacci. Let us read in detail about the day.
Fibonacci Day

Fibonacci Day 2022: The day is celebrated on November 23. It honors the sequence and Leonardo Bonacci who brought this series. He is one of the most leading mathematicians of the Middle Ages. The day recognises the significance and cost of Fibonacci's contributions to mathematics.

## Why is Fibonacci Day observed on November 23?

It is observed on November 23 because the digits of this date form a Fibonacci sequence. Or we can say that when the date is written in mm/dd format (11/23) it forms a Fibonacci sequence; 1,1,2,3.

## What is a Fibonacci Sequence?

It is a series of numbers where a number is the sum of the two numbers before it. Or the sequence of numbers in a series where a number is the total of the two numbers before it. For example 1,1,2,3 is a sequence. Here in this series, 2 is the total of the two numbers before it (1+1). In the same way, 3 is the total of the two numbers before it (1+2).

## From where does this sequence come?

The Fibonacci sequence is one of the biggest accomplishments of Leonardo of Pisa, popularly known as Leonardo Fibonacci. The sequence came from a puzzle about the rabbit population. This puzzle is mentioned in Leonardo's book named Liber Abaci.

The puzzle was that if there are a pair of newly born rabbits male and female and they are able to produce another pair of rabbits in their second month of life then how many pairs of rabbits will be produced after a year?

Leonardo Fibonacci was also responsible for generating the Hindu-Arabic numerals popular in Europe. He also advocated the use of these numerals in his book Liber abaci. He explained the use of zero, provided methods to convert between currencies and different measurements, and explained how to calculate interest.